thats what she said 
:P :P :P

This is exactly what i invented 2 years ago and what i am selling through my website(coolingstore.de) since then. Only my version looks nicer and has real channels in the copper, so more surface area and more performance.
Well, taiwanese don't get lazy in copying our products...

Enough of this! Will someone PLEASE design a chassis that can be submerged in a small, circulating vat of coolant, a la the Cray IV?

Is the water block merely sitting atop the metal heat spreaders or does it replace them and sit in direct contact with the chips?

I've not seen any DIMMs which heat spreaders were machined to close tolerances: if the block just sits atop the spreaders then this setup probably looks a lot cooler than it really is.